对于合并室间隔缺损之较大动脉导管未闭,最佳的手术方法是( )
A.结扎法B.钳闭法C.体外循环下直接缝合法D.导管介入填塞法E.直接切断缝合法
参考答案:C
冲填土是指由水力冲填泥沙形成的填土。( )
I don't mind her criticizing me, but _____ is how she does it that I object to. [ ]
A. it
B. that
C. this
D. which